@keyframes rectangle {
  0%,
  80%,
  100% {
    height: 35px;
    -webkit-box-shadow: 0 0 #d9d9d9;
    box-shadow: 0 0 #d9d9d9
  }
  40% {
    height: 45px;
    -webkit-box-shadow: 0 -20px #d9d9d9;
    box-shadow: 0 -20px #d9d9d9
  }
}

@keyframes fade-in {
  from {
    opacity: 0
  }
  to {
    opacity: 1
  }
}

@keyframes fade-out {
  from {
    opacity: 1
  }
  to {
    opacity: 0
  }
}